About
The Watt Book answers everyday questions about energy at home, with the numbers worked out. We write about what appliances cost to run, how heating and cooling are sized, solar panels and home batteries, generators for power cuts, insulation, and hot water.
What you get
- The answer first. Each guide opens with the key points.
- Numbers you can check. Guides show their arithmetic, and many have a calculator that uses your own electricity rate.
- Sources you can follow. Each guide links to the government agencies, labs and makers it draws on.
- An editor’s approval. Our editor, George McTaggart, reads and approves every guide before it goes live.
Our guides give general information. They are not electrical, tax or financial advice, and no electrician or engineer reviews them.
Who runs the site
The Watt Book is edited by George McTaggart. George McTaggart chooses the topics, reads every guide, and decides whether it goes live. Each guide names its editor next to its date.
To reach the editor, use the contact page.
What we do not cover
We do not explain how to do wiring, gas or refrigerant work yourself. That work is for a licensed professional. We do not cover tax credits, rebates, loans or leases, which change often and depend on where you live. We do not rank or review brands.
How we work
We use AI tools to help research and draft our guides. People stay in charge: our editor chooses the topics and approves every guide before it goes live.
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